All categories

3 years ago

Identify the missing base of the trapezoid, given that A=36 cm∧2. HELP PLEASE!!

Mathematics

1 answer:

den301095 [7]3 years ago

3 0

Answer:

6 cm

Step-by-step explanation:

A = 1/2(b + 12)(4)

36 = 1/2(b + 12)(4)

72 = (b + 12)(4)

18 = b + 12

18 - 12 = b

6 = b

b = 6 cm

You might be interested in

Choose the correct label for the solution to each system of equations from the drop-down menus.

vovikov84 [41]

Answer: left one is no solution and right one is infinite solutions

explanation: the left one the lines don’t touch at all which has no solution and the right one means that both lines are on top of each other

5 0

3 years ago

Read 2 more answers

The top of the rectangular box is 15 cm by 20 cm and its hight is 4 cm. And ant begins at one corner of the box and walks along

Nimfa-mama [501]

Answer:

92 cm

Step-by-step explanation:

Look at the attached photo, it may give you a better understanding

As we know it touches all 8 corners so the shortest distance in cm that the ant may travel is:

15+ 4+15+4 +20 + 15 +15 + 4 = 92 cm

8 0

3 years ago

The Formula A = 1/2BH can be used to find the area of a triangle. Solve the formula for H, and use your equation to find the hei

Bingel [31]

Answer: H=2A/B

H=12 cm

Step-by-step explanation:

A = 1/2BH

2A=BH

H=2A/B

H=2(90)/15

H=180/15

H=12 cm

6 0

2 years ago

Read 2 more answers

Someone help me pleaseeeee

Dafna11 [192]

In an isosceles triangle, there are two sides that are congruent.

In this case, AB and BC are congruent.

Knowing this, we know that AB = BC

Since we know the values of AB and BC, we can put them into the equation:

3x - 4 = 5x - 10

Subtract 3x from both sides:

-4 = 2x - 10

Add 10 to both sides to isolate 'x':

6 = 2x

Divide both sides by 2:

x = 3

Now that we know the value of the variable, we just have to input it into AB's equation:

3x - 4 = 3(3) - 4

3(3) - 4 = 9 - 4

9 - 4 = 5

<u>AB = 5</u>

Good luck!

5 0

3 years ago

Find the first four terms of the recursive sequence defined by the following formula:

NISA [10]

Answer:

144, 36, 9, 2 $\frac{1}{4}$

Step-by-step explanation:

The recursive formula allows us to find a term in a sequence from the previous term.

Given

$a_{n}$ = $\frac{a_{n-1} }{4}$

Given the fourth term we require to work back to the third term , second and so on. Rearrange the formula to give

Multiply both sides by 4, then

$a_{n-1}$ = 4 $a_{n}$

Given a₄ = 2 $\frac{1}{4}$ , then

a₃ = 4 × a₄ = 4 × 2 $\frac{1}{4}$ = 9

a₂ = 4 × a₃ = 4 × 9 = 36

a₁ = 4 × a₂ = 4 × 36 = 144

4 0

4 years ago

Read 2 more answers